﻿using System;

namespace Mx.Ipn.Escom.TT20080015.Modelo.Datos
{
    public class Util
    {
        public static string Validar(string input)
        {
            string str = "";
            foreach (char c in input) if (Char.IsLetter(c)) str += c;
            return str;
        }
    }
}
